authz: remove superfluous union type

PermissionCriteria<TQuery> is a union type which already includes
TQuery itself, so we don't need a second union here.

Signed-off-by: Mike Lewis <mtlewis@users.noreply.github.com>

plugins/permission-node/api-report.md

@@ -99,7 +99,7 @@ export type PermissionRule<
   name: string;
   description: string;
   apply(resource: TResource, ...params: TParams): boolean;
-  toQuery(...params: TParams): TQuery | PermissionCriteria<TQuery>;
+  toQuery(...params: TParams): PermissionCriteria<TQuery>;
 };
 
 // @public

plugins/permission-node/src/types.ts

@@ -49,5 +49,5 @@ export type PermissionRule<
    * can be used for loading a collection of resources efficiently with conditional criteria already
    * applied.
    */
-  toQuery(...params: TParams): TQuery | PermissionCriteria<TQuery>;
+  toQuery(...params: TParams): PermissionCriteria<TQuery>;
 };